Engraving-machine



(No Model.) 2 Sheets-Sheet 2. H. G. SGHRADER.

ENGRAVING MACHINE. No. 592,920. Patented Nov. 2, 1897.

Envy aj'ciradely 1 I 7 llllllllljlllll z 3 E THE "ORR S PiTEfiS ASHINGTON D C UNITED STATES PATENT EErcE.

HENRY O. SOHRADER, OF STAUFFER, PENNSYLVANIA.

ENGRAVlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 592,920, dated November 2, 1897.

- Application filed January 30, 1897. Serial No. 621,346. (No model.)

To all whom it may concern:

Be it known that I, HENRY O. SCHRADER, a citizen of the United fer, in the county of WVestmoreland, State of Pennsylvania, have invented certain new and useful Improvements in Engraving-Machines, of which the following is aspecification,reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in engraving-machines for'engraving upon glass and other articles; and it has for its objects, among others, to provide a simple and cheap device for this purpose composed of few parts, those readily assembled and adjusted, and adapted for making different designs upon the articles operated upon. The base or support or table is provided with a plurality of ways radiating from the center,in which may be adj ustably mounted the stands carrying the needle-support and its operating mechanism, so that one, two, or more of the same may be caused to operate upon the article at the same time. The needlesupporting plate or frame is mounted for pivotal movement, the needle is adapted for adjustment upon said plate or support to give it the required height, and the plate is moved upon its pivot by an eccentric and suitable connections with the operating mechanism.

Other objects and advantages of the invention will hereinafter appear in the following description, and the novel features thereof will be particularly pointed out in the ap-. pended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification, and in which Figure 1 is a side elevation with a portion in vertical section. Fig. 2 is a view looking at right angles to Fig. 1, showinga front view of the machine. Fig. 3 is a plan of the table with the large gear and the horizontal shafts and their gears, the remaining portions of the section on the line 4 4 of Fig. 2. Fig. 5 is a horizontal section on the line 5 5 of Fig. 1.

Like letters of reference indicate like parts throughout the several views.

Referring now to the details of the draw ings by letter, A designates the table, which may be supported in any desired position in States, residing at Staufany suitable manner, in this instance being shown as mounted upon the legs a, braced by the horizontal brace-arms a, which join the legs to the depending tubular portion A, extending centrally from the under side of the table, as seen more clearly in Fig. 1. Upon the upper side of the table are the radial ways B,Which may be of any desired number,

-in thisinstance being shown as four, and

these ways are dovetailed, as seen in Figs. 1 and 2. It will thus be seen that one, two, or more needles and their supporting and opere ating mechanisms may be employed for simultaneous or successive movement upon the article being operated upon.

C is a large bevel-gear disposed at the center of the table and having the tubular shaft 0 mounted in the tubular depending portion A of the table, as seen more clearly in Fig. 1,

the said shaft near its upper end being pro- 1 vided with a conical portion 0, having a bear ing in the correspondingly-shaped upper end b of the depending portion A.

D is a shaft passed through the hollow shaft G and secured therein at any proper height by suitable means, as the set-screw d, mounted in the said hollow shaft, as seen in Figs. 1 and 2, and engaging the shaft D, so that the latter may be adjusted vertically, as may 'be required, and held in its adjusted position. At the upper end of this shaft D is the plate or support E, fixedly mounted thereon so as to revolve therewith and upon which is designed to be supported and held in any suitable manner the article X to be engraved.

F and F are shafts arranged at right angles to each other upon different planes, so as to cross without interference with each other, as seen in Figs. 1 and 3. These shafts are mounted in suitable bearings f on the table, as seen in Figs. 1 and 3, and each has one end extended and provided with any suitable means, as the crank-handle f, by means of which the same may be rotated when desired.

1 One shaft carries a bevel-pinion F meshing device being removed. Fig. 4 is a horizontal with the larger bevel-pinion O, as indicated in Figs. 1 and 3, so that by rotation of said fshaft' the required rotary movement is given to the bevelpinion G, and consequently to the plate or support E, carrying the glass or otherarticle to be operated upon. Each of the shafts carries a bevel-pinion F which mesh with each other, as seen in Fig. 3, whereby the rotation of either shaft will drive the pinion O and also the other shaft, together with the needles connected with the shafts.

Each needle and its carrier or support and operating mechanism is designed to be mounted and actuated by the movement of either of the shafts, but may be actuated independently of the other. It is adjustable radially to and from the work and also vertically, so as to accommodate itself to the different sizes and styles or classes of articles operated upon.

It being understood that each needle, needle-support, and operating mechanism is the same, a description of the construction and operation of one will suffice for all.

G represents the post or holder, provided with a foot g, fitted to and adapted to slide in the dovetailed way B of the table.

II is the head. This head has a tubular portion which receives the vertical portion of the holder G and upon which it may be held in its adjusted positions by the setscrews or analogous means 9, as seen in Figs. 1 and .3. This head has the offset I, in which is located the sleeve J, which extends from the plate K, so that the latter may have a movement as upon a pivot formed by said sleeve J. Through this sleeve passes a shaft L, which passes also through an opening in the plate K, and carries a bevel-pinion M, as illustrated best in Fig. 4. A washer 7c is placed upon the outer end of the sleeve, and

a nut Z engages the threaded end of the shaft, as seen in Fig. 4, and bears against said washer to hold the parts against endwise movement, but permits of their rotation.

N is a shaft at right angles to the shaftL and carries a bevel-pinion N, meshing with the bevel-pinion M, as seen in Figs. 1 and 4.

O is a shaft at right angles to the shaft L and carrying a bevel-pinion O, meshing with the pinion M, as seen in Figs. 1 and 4. This latter shaft 0 is hollow, and arranged within the same is the bent needle P, whichis urged to its work by the spring P, retained within the said hollow shaft, as seen in Fig. 1. The shaft 0 has hearings in the ears or lugs 0 of the frame 0 from the rear side of which projects a pin or stud Q, that works through the curved slot Q, struck from the shaft L as a center, and upon the end of this stud or pin is a nut q, as seen best in Fig. 4 On the outer end' of the shaft N is a gear-wheel R, which meshes with the gear-wheel R on the shaft 1*, which gear in turn meshes with the gear S on the shaft 8, the gear-wheel S meshing with a larger gear-wheel T on the shaft 2, and this last gear-wheel T meshing with a gear-wheel U on the shaft F, as seen clearly in Figs. 1 and 2, the arrangement of gears being such that they all continue in mesh regardless of the vertical adjustment of the head, as also clearly seen in Fig. 2.

The operation will be apparent. The glass or other article X is placed upon the board or support E, and the shaft F being rotated rotary movement is imparted to the shaft D and the holder E thereon, and consequently the glass and the same rotation of said shaft F gives to the needle, through the medium of the gears and bevel-pinions above described, a rotary movement, causing it to engrave upon the glass the proper design. Proper adjustment of the needle-supporting frame 0 and to the head II is made to conform to the design required.

In order to give the plate K and the needle carried thereby an up-and-down movement radially of the work-holder to produce different designs, the said plate is provided at its lower end with a vertical slot 7;". In this slot works a pinion V, carried by the eccentric IV, located on the shaft 10, which shaft is journaled in the lug 7L projecting from the head II, as seen in Figs. 1 and 5. This shaft w is provided at its outer end with a pinion M), which meshes with a pinion w on the shaft 25. The shafttis provided with the gear T, whereby when the shaft F is rotated the movement therefrom will be transmitted to the eccentric, which, through the medium of its pinion working in the slot, causes the plate K to travel on its pivot formed by the sleeve I in a path radial to the work-holder. \Vhen it is desired to engrave an ordinary scroll upon glass, this eccentric may be disconnected or thrown out of operative position.

Modifications in detail may be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

It will be understood that the articles to be engraved upon are covered with beeswax or the like and the needles scratch the patterns in the wax, after which the article is placed in acid, which eats into the glass in the usual way.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In an engraving-machine, a central rotating work-holder, a table provided with a plurality of guideways extending radially from said holder, a plurality of tool-holders supported in said guideways, and means for simultaneously actuating the several en graving-tools, substantially as specified.

2. In an engraving-machine, a central rotating work-holder, a table provided with a plurality of guideways, tool-holders slidably supported in said guideways, and means for simultaneously actuating said work-holder and the several. tool-holders, substantially as specified.

3. In an engraving-machine, a central rotating work-holder, a table provided with radial guideways, a series of tool-holders located in said guideways, a centrally-disposed pinion, and shafts geared to each other and to said pinion to simultaneously operate a series of tools supported in said guideways, substantially as specified.

4. In an engravingmachine, a table having radially-disposed guideways, a central workholder, shafts mounted in hearings on said table and disposed at right angles to each other, and meshing gears on said shafts adjacent to their point of intersection, substantially as described.

5. In an engraving-machine, a table having radially disposed guideways and shafts mounted in hearings on the table and disposed at right angles to each other, a centrally-disposed pinion mounted in the table, a pinion on one of said shafts engaging therewith and means to drive one of said shafts by the movement of the other; substantially as described.

6. In an engraving-machine, a table having radially-disposed guideways, a centrally-disposed, depending, tubular portion, a pinion having a tubular shaft mounted in the tubular portion, and a shaft extended within the shaft of the pinion, and carrying a support for the article to be operated upon; substantially as described.

7. In an engraving-machine, a table having radially-disposed guideways, a centrally-disposed, depending, tubular portion, a pinion having a tubular shaft mounted in the tubular portion, a shaft extended within the shaft of the pinion and carrying a support for the article to be operated upon, and means for actuating said pinion and the engraving-needle; substantially as described.

8. The combination with a post or holder and a movable head secured thereto, of a plate pivotally mounted on said head to oscillate in a vertical plane, means for swinging said plate in a vertical plane upon its pivot, a needle-holding frame supported from said plate, and gearing movable with the head for actuating said needle, substantially as specified.

9. The combination with a post or holder and a head secured thereto, of a plate pivotally mounted on said head to oscillate in a vertical p1ane,means for oscillating said head, a needle-holding frame supported from said plate, and means operatively connected to rotate said needle simultaneously with the oscillation of saidplate, substantially as specified.

10. The combination with a post or holder and a vertically-adjustable head thereon, of a plate pivotally mounted 011 said head to travel in a vertical plane, an engraving-needle supported on said plate, needle-operating mechanism, and means acting upon the lower portion of said plate to swing the same in a vertical plane, substantially as specified.

11. The combination with a post or holderand a vertically-adjustable head thereon, of a plate pivotally mounted on said head to travel in a vertical plane, an engraving-needle supported on said plate, needle-operating mechanism, means acting upon the lower porthe same in a verand a revoluble plate or worktion of said plate to swing tical plane,

holder for supporting the article to be operated upon, substantially as specified.

12. The combination with a post or holder and a vertically-adjustable head thereon, of a plate pivotally mounted on said head to travel in a vertical plane, an engraving-needle supported on said plate, needle operating mechanism, means acting upon the lower portion of said plate to swing the same in a vertical plane, a revoluble plate or work-holder for supporting the article to be operated upon, and means for operatively connecting the rotating plate with the needle-operating mechanism, substantially as. specified.

13. The combination with a post or holder and a head secured thereto, of a plate pivotally mounted to oscillate upon said head and provided with a vertical slot in the lower portion thereof, a needle-holding frame supported from said plate,means to rotate said needle, and an eccentric provided with a pin located in said slot to oscillate said plate, substantially as specified.

14. The combination with a post or holder and a head secured thereto, of a plate pivotally mounted on said head to travel in avertical plane and provided with a vertical slot therein, an eccentric having a pin working in said slot,and needle-operating mechanism operatively connected with said eccentric, substantially as specified.

15. The combination with a post or holder and a head secured thereto, of a plate pivotally mounted on said head to travel in a vertical plane and provided with a vertical slot therein, an eccentric having a pin working in said slot, needle-operating mechanism operatively connected with said eccentric, and means for adjusting the needle in an arc of a circle on said plate, substantially as specified.

16. The combination with a table provided with radial guideways, of a post.or holder having a foot adjustable in said guideways, a head adjustable on said post plate pivotallymounted on said head to swing in a vertical plane, a train of gears carried by said head, a needle support upon said plate,and beveled pinions connected with said gears for operating the needle, substantially as specified.

17. The combination with a table provided with radial guideways, of a post or holder having a foot adjustable in said guideways, a

head adjustable on said post or holder, a plate pivotally mounted on said head to swing in a vertical plane, a train of gears carried by said head, a needle-support upon said plate, beveled pinions connected with said gears for operating the needle, and means for moving the lower end of the plate to and from the head, substantially as'specified.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY O. SCHRADER. Witnesses:

JNo. D. MoOALEB', A. S. OVERHOLT.

or holder, a 

